TomMcNally wrote:Clementine 6L6 build, Edcor XPWR-005 (PA-774 clone) and Edcor GXSE15-8-3.5K, Hammond 156R choke, Russian
6SL7 and 6L6 equivalents.
TomMcNally wrote:By the way, I know a few guys would go to more complex methods, but a quick SPARK test is the easiest way to make sure the 6.3V filament windings are in phase.
separks wrote:Awesome, Tom! If you get the chance, I'm curious what the peak B+ at C7 is on a cold amp at startup. Won't get my XPWR-005 for several more weeks!
separks wrote:Since these outputs are really for a GSG, I have a mod you can do. You can use a 750 ohm resistor at R27 & R28. Hookup J11 and J10 to the output + (pins 1) and - (pins 2). This will be 6dB of global feedback, or you could use 2K for 3dB. Heresy to some, but I think this mod will lower the impedances enough to really hit a sweet spot and sound as good as any high-falutin' triode. In particular, it will help match those 3.5K outputs better.
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